请输入您要查询的英文单词:
单词
perpetual motion
释义
perpetual motion
noun
1.
:
the motion of an ideal mechanism that could continue to operate indefinitely without drawing upon an external source of energy
2.
obsolete
:
perpetual motion machine
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myrica
myrica
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myricyl alcohol
myrientomata
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myringitis
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更新时间:2025/7/9 13:11:13